Overview - Balance Shaft

Fig 1: Balance Shafts Components Location

Courtesy of AUDI OF AMERICA, LLC

1. Bolt
   • Tightening Specifications:
     • Steel bolt 9 Nm
     • Aluminum bolt 4 Nm +45°
   • Aluminum bolt: Always replace after removal
2. Balance Shaft
   • Exhaust side
   • Lubricate the bearing with engine oil
   • Replace in pairs only. Refer to BALANCE SHAFT, REMOVING AND INSTALLING, EXHAUST SIDE .
3. Needle Bearing Rim
   • Always replace after removing
   • The needle bearing rim is colored, a needle bearing rim of the same color must be installed.
   • Lubricate the bearing with engine oil
4. Balance Shaft Pipe
   • Installation position. Refer to Fig 2.
5. Cylinder Block
6. Exhaust Side Balance Shaft Seal
   • Replacing. Refer to BALANCE SHAFT GASKET, REPLACING, INTAKE SIDE .
7. Balance Shaft
   • Intake side
   • Lubricate the bearing with engine oil
   • Replace in pairs only. Refer to BALANCE SHAFT, REMOVING AND INSTALLING, INTAKE SIDE .
8. Needle Bearing Rim
   • Always replace after removing
   • The needle bearing rim is colored, a needle bearing rim of the same color must be installed.
   • Lubricate the bearing with engine oil
9. Bolt
   • Tightening Specifications:
     • Steel bolt 9 Nm
     • Aluminum bolt 4 Nm + 45°
   • Aluminum bolt: Always replace after removal

Fig 2: Balance Shaft Pipe - Installed Position

Courtesy of AUDI OF AMERICA, LLC

• The openings -arrow right- must face the chain side.

-- Insert the pipe -2- for the balance shaft in the cylinder block -1-.

Courtesy of AUDI OF AMERICA, LLC

• For the correct installation position the dimension must be -a- = 21 mm.